Platform laying and platform cover turning machine



Aug. 18, 1953 J. T. LANCASTER PLATFORM LAYING AND PLATFORM COVER TURNINGMACHINE Filed May l 1950 J. T. LANCASTER Aug, 1s, 1953 PLATFORM I .AYINGAND PLATFORM COVER TURNING MACHINE Filed May l 1950 SheetsSheet 2 Aug.lS, 1953 .1.1'. LANCASTER PLATFORM LAYING AND PLATFORM COVER TURNINGMACHINE 6 Sheets-Sheet 5 Filed May l 1950 Aug. T8, 1953 J. T. LANCASTER2,648,852

PLATFORM LAYING AND PLATFORM COVER TURNING MACHINE FiledMay 1, 195o esheets-sheet 4 f1 van for:

7.' Lancaser @m w QN @A www;

Aug. i8, 1953 .1.1'. LANCASTER 2,648,852

PLATFORM LAYING AND PLATFORM COVER TURNING MACHINE Filed May L, 1950 6Sheets-Sheet 5 J. T. LANCASTER Aug. S, 1953 PLATFRM LAYING AND PLATFORMCOVER TURNING MACHINE 6 sums-sheet s Filed May l 1950 424 Eby. l2

fnvenor: .Jo/7n 7." Lancaster' l/ Patented Aug. 118, 195g UNITED STATESPLATFORM LAYING AND PLATFORM CDVEn 'rUaNrNo MACHINE 15 claims.

This invention relates to machines for use in the manufacture of shoesand it is herein disclosed as embodied in a machine for laying plat,-form units upon the insoles, such as sock linings, of platform` shoesand also for turning the platform covers of the shoes. TheseV operationsare performed upon partially completed platform shoes which may consistof sock linings, uppers, and platform covers united by stitching.

It is an object of this invention to provide a simple machine forreadily and conveniently performing the above-mentioned operations.

In accordance with a feature of the invention, the illlustrated machineis provided with a Slle support which is yieldable downwardly and with aplunger which presses a precemented platform unit down upon theprecemented sock lining of the shoe to effect adhesion and also to movethe shoe together with its support downwardly while suitably arrangedtools turn the platform cover.

appear from the following detailed description of an illustrativeembodiment of the invention, when considered in connection with theaccompanying drawings, and will be pointed out in the appended claims.

In the drawings,

Fig. 1 is a side elevation of an illustrative machine embodying theinvention, the machine being shown in its initial position;

Fig. 2 is a plan view showing the positions of the various parts of themachine at the completion of the cover turning operation;

Fig. 3 is a front elevation of the machine, partly in section;

Fig. 4 is a half-sectional rear elevation showing the turninginstrumentalities at one side of the heel portion of the shoe at anintermediate stage of the cover turning operation;

Fig. 5 is a view similar to Fig. 4 showing the turning instrumentalitiesat the completion o f the operation;

Fig. 6 is an angular view showing the turning instrumentalities on theside of the machine opposite to that shown in Figs. 4 and 5;

Fig. Y is an angular view of a portion of the mechanism at the front ofthe machine;

Fig. 8 is arear elevation of the machine, partly in section;

Fig. 9 is an angular exploded view showing a portion of the mechanism;

Fig. 10 is a View similar to Fig. l, showing the positions of thevarious parts of the machine at the beginning of the cover turningoperation, parts being shown in section;

Fig. l1 is a sectional view in side elevation of mechanism forautomatically controlling the friction tools;l

Fig. 12 is a Sectional view in rear elevation taken on the. line XII-X11of Fig. 11;

Fig. 13 is a sectional View in plan taken on the line XIII-XIII of Fig.11; and

Fig. 14 is an angular view of a portion or" the mechanism shown in Figs.1,1, l2, and lf3.

The illustrated machine has a shoe support in the form of a jack 2 0(Figs. 1 and 10) upon which is secured an upstanding last` pin 22 (Fig.8 shows the entire pin; Figs. 1 and 10 show only the collar portion ofthe pin) ,and a toe rest 2d for supporting, a shoe in inverted position.The shoe, as shown herein, consists of an upper U, a platform cover C,and an insole in the form of a sock. lining S (Figs. 4, 5,y and 8), alljoined together by stitching and mounted upon a last L. The last pin 22engages a thimble hole in the cone of the last L.

One of the functions of the machine is to press a platform P against thesock lining of the shoe, the adjoining surfaces of the platform and thesock lining having been precoated with cement to cause them to adhereupon pressure. Such pressure is applied by a tread-le-operated plungeror presser 26y (Figs. 1 and 10) having a heel plate 28, and a toe plateSii'. The jack 26 yields downwardly under the force of the presser tuntil its downward movement is limited by a stop (later to bedescribed), whereupon the force of the presser is exerted positivelyagainst the platform. During the downward yielding movement of the jack20, the platform cover C is turned by ay plurali-ty of blade-likemembers or horns 32, 3.4, 3G, 38,' (Figs. 1 and 1(1), 40 (see also Fig.2), and 4,2 which enter between the platform cover C and the upper U asthe shoe moves downwardly and which are themselves held againstheightwise movement. The upper edges of the horns are thin, but bluntenough to iacilitate the rolling of the platform cover over these edgesas it is being turned;l and these edges are slightly bent out away fromthe shoe (as best shown on the horn 32,r Fig. 1) to enable them to clearthe line of stitching at the base of the socalled crease between theplatform cover and the upper. Associated with the horn 32 and overlyingit is a friction tool 4d which engages the outside of the platform coverC and which is urged upwardly as the shoe moves downwardly to assist inthe turning of the platform cover. Similar friction tools 4%, 48, 56, 52and 5-1 are associated respectively with the horns 35, 3%, 38, 4i) and42.

The jack 2c comprises a horizontal bar 58 (Figs. 1, 3, 8 and 1Q)extending lengthwise of the shoe and having adjacent to its heel end asplit socket into which a depending shank 53 of the last pin 22 isclamped in a desired position of heightwise adjustment by a bolt 6E andnut 62. The bar 5t adjacent to its toe end is shaped to form a guideway(Fig. 3) for a slide 54 which can be clamped by a setscrew 65 in anydesired position of longitudinal adjustment along the guideway. Theslide 6d has a socket which engages a stem 63 depending from the toerest 26|. A setscrew 68 (Fig. 3) secures the stem 63 in any desiredposition of heightwise adjustment in its socket. The bar 55 is securedupon the upper end of a plunger 'i0 (Figs. l, 9 and 10) which isslidable heightwise in a stationary sleeve 12 and is held againstturning in the sleeve by a key lll. The sleeve 'S2 has a flange 'i6which is secured by screws 'E3 upon the upper end of a frame or standard80 which rests upon the floor. The plunger i3 is normally held up by acoil compression spring 82 which surrounds a stem 84 depending from theplunger lil. The lower end of the spring |52 abuts against an internalflange SG on the sleeve 'i2 and the upper end bears against the lowerend of the plunger l. The upper position of the jack 2B under theinfluence of the spring 82 is determined by a stop 83 secured upon thelower end of the stem 84 and engageable with the bottom face of thesleeve '|2. Downward movement of the jack 2G is limited by a shoulder 90formed upon a boss depending from the bar 56 and engageable with theupper end of the sleeve 12. The jack 2G can be latched in anintermediate position by a latch 92 pivotally mounted upon a fulcrum pin91| which is secured in the frame Se. The latch 92 engages the stop BB'to hold the plunger 'H down against the force of the spring B2. Thelatch 92 is urged into latching position by a coil compression spring 96and can be released by a handle |33.

The presser 25 (Figs. l, 2 and l0) as already mentioned, has aheel-engaging plate 28 and a toe-engaging plate 3d. The toe-engagingplate is slidably guided in the presser for longitudinal movement ofadjustment in accordance with the length of shoe to be operated upon andit is clamped in its adjusted position by a screw |38 threaded into thetoe plate and extending through a slot Ii (Fig. 2) in the presser.Secured in the presser 23 is an upstanding pivot pin |02 (Fig. 10) whichis journaled in a bearing formed in the end portion of an arm |24. Acollar |36 on the upper end of the pin |62 engages the upper end face ofthe bearing and a boss |08 on the presser 23 engages the lower end faceof the bearing to prevent heightwise movement of the presser 26 relativeto the arm H34. A handle extending from the collar m enables theoperator to manipulate the presser by turning it about the axis of thepin |2 and also by swinging the arm HM about an upright pin H2. The armist has a bearing which engages the pin ||2 and which has upper andlower end faces engageable with lugs I lli and I6 respectively extendingfrom a sleeve ie secured upon the upper end portion of a treadle rod|20. The pin H2, which serves as a pivotal support for the arm m, iscarried by the lugs ||l| and H5. The sleeve H8 is secured upon thetreadle rod |20 with provision for heightwise adjustment by a pair ofclamping nuts |22 and |24 threaded upon the treadle rod. The treadle rodis normally held up by a coil compression spring |26 which surrounds itand which has its lower end abutting against a lug |23 on an L-shapedbracket |3 secured to the frame 8d and its upper end bearing against acollar |32 on the rod |26. The upwardly extending arm of the bracket |30is channel shaped to loosely embrace the rod |2il; and the upper portionof the bracket has formed in it guideways engaged by guide lugs |33(Fig. 2) extending laterally from the sleeve HB to guide and support thepresser 2S in its operative downward movement.

The horn 32 (Figs. l and l0) operates upon the toe end of the platformcover C and it is dovetailed in a groove in a block |36 for heightwiseadjustment with respect to the block; and the block is pivotally mountedfor tilting movement of adjustment about a transverse horizontal screw|36 which can be tightened to clamp the block in adjusted positionbetween two ears constituting an upward extension of an arm |38. Thelower end portion of the horn 32 is notched to engage a head his of anadjusting screw which is threaded into the block |32l and which ismanually turned to Vary the heightwise adjustment of the horn. The lowerend of the arm |38 is forked to form a pair of ears which are secured byset screws |42 (Fig. 7) to a horizontal transverse shaft |44 (seealso'Figs. 3 and 10) journaled in bearings formed upon arms |59 and |52respectively of a bracket |54 secured upon a squared upper end portion|52` of the sleeve l2. Secured upon an end portion of the shaft |44 is agear sector |58 which engages a worm |60 fixed on a horizontallongitudinally extending shaft |62 which is journaled in bearings |64and |65 formed in an upstanding portion of the arm |52. The shaft |62has a knurled head |63 (Figs. l, 6, and 10) by which it can be turned.The worm |0 does not extend the full distance between the opposing endfaces of the bearings |64 and |66 and the shaft |52 is permitted toslide as well as to turn in said bearings. A coil compression spring |58surrounding the shaft |52 and interposed between the opposing end facesof the bearing |54 and the worm |69 urges the worm in a heelwarddirection tending to bring the heelward end face of the worm intoengagement with the opposing end face of the bearing |66. It is evidentthat when no shoe engages the horn 32, the spring |68, acting throughthe gear |58, will urge the arm |38 heelward to an initial stoppedposition determined by the engagement of the worm |66 with the bearing|66 (as shown in Fig. l) and that when a shoe is placed upon the jackand the jack is lowered to the position shown in Fig. 10, the upper ofthe shoe will cause the horn 32 to yield in a toeward direction aspermitted by the spring. The horn 32 is thus held yieldingly by thespring |68 against the upper of the shoe to enable the horn to enterbetween the platform cover and the upper as the shoe descends. Theinital position of the horn 32 can be adjusted toewardly or heelwardlyby turning the knurled head The friction tool 44 (Figs. 1 and 10) ispivotally `ir'ic'uinted upon a 'p'in |16 'secured "in the ul'p'er endportion of a stem |752 which is adjustably clamped by 'a screw 11d in -asplit bearing formed in the upper end of a lever |15. The 'stein |12 isinclined upwardly and heelwa'rdly from its bearing in the lever |16. Thelever adjacent to its lower end (see also Fig. 7) is Vpivotally mountedupon transverse horizontal pin |18 secured bete/een a pair of vears cnthe forward end of a lever lil/l which is fulcrumed for free rockingmovement on the shaft |44 and extendbetween the ears formed bythe forkedlower end portion of the arm |33 (Fig. 7). Y A leaf spring 22 clamped ina split lug |83 on the lever |32 and acting upon the lever i 215normally vinai'ntains the friction tool `44 ina position determined by aearn |84 (see also Figs. 2 and 9) engaging a roll |86 on the lower rvendportion 'of the lever |l6.

The cam |84 is mounted on a spider arm |88 of a bracket '|90 (Figs. 7and 9) which is rotatable about the axis of the sleeve 12 and which maybe turned into and out of operative position by a handle N2. To providefor radial adjustnient, the cam |841. is carried not directly by thespider arm tot but b'y a dovetail slide |94 which is radially `slidablein the spider arm and which has an interlocking extension let (Fig. 9)also slidable in the same guideway. Formed in the e''tension |96 isan'arcuate slot |83 which is 'subf 1'itially coaxial 'with the spiderbracket |90 and h is engaged by a roll 2536 on a pin '262. sed anddepending from a slide 204. This `dovetailed 'for longitudinal sliding"adent in a guideway formed in an under porof the bracket i551, suchadjustment being secured upon a shaft 2H). The

i haft 2 it? is journalle'd in bearings formed in the bracket arms |53and |52 and it is operated by a link 2i2 the lower end of which ispivotally connected by a pin 2M to a gear 'sector 216 (to be mentionedlater) secured by a pin 2|"8 to the shaft. The upper end of the link2|-2 (Fig. 7) is pivotally connected by a pin 22? toa lug'222 extendingfrorn the arm |38. It is evident that as the shaft |62 is turned toadjust the horn 32 'corresponding opposite adjustment of the cam l il!!will oe effected through the linkage and gears 'above described. The cam181i acts upon the lever |15 below the pin |18, and hence the cam isadjusted in a 'direction opposite to that of the horn 32 in order VthatA`the adjustments yof 'the horn 32 and the 'friction tool 44 will takeplace in the same direction.

The bracket |50 consists of a central boss 'from which extends thespider arm |28 and from which also extend Vlive other spider arms (Fig.2) later to be described. This boss |90 restsupon the upper surface ofthe flange 16 (Figs. 9` and l0) and is rotatable about the sleeve 12.The operative surface of the cam |84 is not circumferential but isspiral to enable the operator as he moves the handle |92counterclockwise (as viewed `from above) to bring the cam from .anout-'ofthe-way position into an y operative posi-tion wherein it engagesthe roll |86 and swings the frictit'in tool 44 into an initialpositionwhereinit `wil1 be out of the way -of a shoe which is to be placed uponthe jack 20. After the shoe has been placed upon the jack, and the jackhas been rlowered vto the position shown in Fig. 10, the operlator turnsthe lspider in a clockwise direction to release lthe friction toolwhich, un'de'r 'the in- '6 viiuence ofthe spring |82, will comeyieldingly into engagement with the 'exposed surface of the platformcover. l

The lever '|80 is fulcr'um'ed 'upon the shaft |44 and can rock withrespect thereto. 'The end of the lever opposite to the end 'whichcarries the pin |18 has mounted therein a pin 224 (Fig. 7) which carriesian antifricti'on roll 228 (Figs. 1, 7 and 10). Depending from the bar56 is a vlug 228 having an vunder surface which, when the jack 20descends, engages the roll 226 and swings the lever |80 in a clockwisedirection to 'raise 'the friction tool 44. A tension spring 230 havingits lower end anchored to a stationary pin 232 (later to be described)and its upper -end hooked to the forward portion of the Ylever |80 holdsthe lever in an initial position (Fig. 1) determined by a stop (notshown). YWhen the jack 20 descends and the lug 2.28 engages the roll 226(Fig. '10), the spring 230 will hold the vroll up yieldingl'y againstthe lug. The distances between the lshaft I 44 and the pins |18 and 224respectively 'are Asubstantially equal and it is evident, therefore,that as the jack 20 descends the friction tool 44 will rise ata speedsubstantially equal to that of the descending shoe and thereby urge theouter portion lof the platform cover C upwardly while the platform coveris being drawn down vover the upper edge of the horn 32.

The horn 34 (Figs. 6 and 10) operates upon one side of the platformcover at the forepart of the shoe. It has a depending cylindrical shank234 which turns freely in a Vsocket 236 formed in the upper end portionof a bar 238. A tension spring l240 having its upper `end hooked to thehorn 34 and its lower `end anchored to the ubar 238 holds the shank 234down in its socket and also holds the horn in a neutral orinitial'angular position about the axis of its shank, from'which angularposition the horn can readily turn to conform to the direction of thatportion of 'the shoe surface which it engages. 'On vthe lower portion ofthe bar 238 is a hub 242 which is slidably keyed upon 'a horizontal"shaft 244 extending lengthwise ofthe shoe and having a Ykeyway -246.The shaft 2'44 is journal'ed in three bearings 248 (Fig. 6), '250, and252, the bearing 248 being integral with a lug 254 extending laterallyfrom 'the bracket arm "|52, and the bearings "250 and 252 being'integral lrespectively with arms 256 and 258 extending from a bracket260 (see also Fig. 7) secured to a lateral face of the squared upperportion |56 ofthe sleeve 12. The shaft 244 is held against axialmovement in its bearings by a retaining collar 262 secured upon its rearvend and a hub 264-secured upon its forward end. Depending from the hub264 is a crank arm 268 (Figs. 3 and 7) having vin its lower end a slot268 (Fig. 1) which fits loosely over the pin 232 (already-mentioned).This pin 232 extends through, and is fixed to, `the bracket arms |50yand |52. Surrounding the pin 2-32 and .interposed between thebracketarrn |52 and the crank arm 266 is a coil compression spring 210which urges the crank arm outwardly as rfar as permitted by aknurledstop `Anut 212. It is evident that, in the absence -of a shoeagainst the horn 34, the spring 210 `will cause the horn toassume aposition determined vby the adjustment fof the vnut 212, and that, whena shoe isplaced upon the jack `and the .jack is depressed, the spring210 will shorten and .permit the horn to yield outwardly as'it pressesagainst the upper of the shoe ina Vposition to enter between theupper'a'nd the platform cover of tire-shoe.

'sion 214, of the horn sa.

rearwardly in accordance with the length .of the shoe and, forconvenience, this adjustment is effected automatically by the forwardand rearward adjustment of the horn 32. To this end the hub 242 has anextension 214 (Figs. l6 and 9) on the under side of which are formedrack teeth which intermesh with teeth on a gear sector 216 secured by apin 218 to the shaft 2 L0. YIgnasmuch as the hub 242 is free to slidealong the shaft 244, it is evident that the turning of the shaft 2I0resulting from the adjustment of the horn 32 will serve to effect asimilar adjustment, through the gear sector 216 and the rack exten- Thefriction tool 46 (Fig. 6)v is pivotally mounted upon a horizontal pin280 with limited freedom ofheightwise swinging movement. The pin 280 iscarried by an ear extending up from a short cylindrical rod 232 whichcan turn within a socket 284. A tension spring 2 86 anchored to thesocket 284 and hooked to the rod 282 holds the rod down in its socketand also holds it in a neutral or initial angular position about itsaxis. The friction tool 46 can thus yield about two different axes toconform to the general plane of that portion of the shoe which itengages. The socket 284 constitutes the upper end portion of a bar 288having, at its lower end, a hub 290 which is slidably keyed upon ahorizontal shaft 292 extending parallel to the shaft 244. The shaft 292is journaled in bearings 294, 296 and 298 carried by a rocking framecomprising a longitudinal bar 380 and rocker arms 382 and 364.

suitable collars 306 and 388 on thel end portions of the shaft 292 holdthe shaft against axial movement. The rocker arms 392 and 394 have hubs3I0 and 3|2 by which they are pivotally mounted for swinging movementupon the shaft 244.

A torsion spring .3!4 acting on the shaft 292 to urge the friction tool46tow'ard the shoe is normally opposed vby a cam mechanism which servesto hold the friction tool in an initial position. (Figs. 2 and 9) uponthe outer end of a spider arm 318 which is integral with the spiderbracket |98. The operating surface of the cam 3 l 6 is spiral withrespect to the axis of the spider bracket I99, and it acts upon a camroll 320 (Fig. 6) which is idly rotatable upon the lower end portion ofa crank arm 322 depending from a hub 324 secured by a setscrew 326 tothe shaft 292. Thus, when the handle |92 is moved to turn the spiderbracket |98 clockwise, the friction tool 46 as well as the friction tool44 will be released, and both friction tools under the influence oftheir respective springs will come yieldingly into engagement with theexposed surface of the platform cover.

The friction tool 46 is moved operatively up, while in yieldingengagement with the platform cover, by mechanism comprising a lever 328(Fig, 6) freely fulcrumed upon the shaft 2.44. The outer end of thelever 328 is integral with the bar 386, and the inner end carries anantifriction roll 330. A torsion spring 334 normally holds the lever 328in an initial position wherein the roll 338 is up and the friction tooldown, this initial position being determined by a stop (not shown). Whenthe jack is lowered, a lug 332 on the jack will first engage and thendepress the roll 339, thereby raising the friction tool.

Adjustment of the position of the friction tool 46 (Fig. 6) toewardly orheelwardly, in accord- This mechmism comprises a cam 3Il` ance with thesize of the shoe, is effected autel.v matically by a pair of arms 336extending out from the bar 238 and embracing the bar 288 to cause thekeyed hub 290 to slide along the shaft 292 in accordance with theforward and rearward adjustment of the horns 32 and 34 as previouslydescribed.

The horn 36 (Figs. 6 and 8) operates upon the platform cover at one sideof the heel portion of the shoe. It has a depending flat shank 338 whichis slidably mounted for heightwise adjustment in a block 346 having asuitable guideway for that purpose. A setscrew 342 (Fig. 8) holds theshank 338 in adjusted position. The block 349 is pivotally mounted fortilting movement of adjustment upon a horizontal clamping screw 344carried on the upper end of a lever 345 having a hub 348 whereby thelever is freely fulcrumed upon the shaft 244. The lever 3,46 has aforked extension 350 below the hub 348 and embracing a transverse pin352 (see also Fig. 8). A bracket 354 (see Fig. 9) has two rearwardlyextending arms 356 and 358 through which the transverse pin 352 extendsand by which it is supported. A coil compression spring 369 surroundingthe pin 352 and interposed between the bracket arm 353 and the leverextension 359 urges the lever extension outwardly to a stopped position`determined by a knurled nut 362 threaded on the outer end portion ofthe pin 352. When the jack 20 with a shoe thereon descends, the horn 36,the initial position of which is determined by the stop nut 362, canyield outwardly and the horn will be pressed against the upper of theshoe by the spring 360.

The friction tool 48 is mounted in an arcuate guideway formed in a block364 and having a horizontal axis, the friction tool having a limitedfree tilting movement about said axis. A stop screw 365 in the block 364engages a slot in the friction tool 48 to retain the friction tool inits guideway. The block 364 has a depending cylindrical shank 366 whichcan turn within a socket 368, a tension spring 310 being provided tohold the shank down in its socket and also to hold the shank in aninitial angular position from which it can turn to conform to the planeof that portion of the shoe surface which it engages. The socket 368 isformed upon the upper end portion of a lever 312 having a hub 314whereby the lever is freely fulcrumed upon the shaft 292. An arm 316,integral with the hub 314 and depending therefrom, carries a cam roll318 which cooperates with a cam 380 (Figs. 2 and 9) on the end of aspider arm 382 integral with the spider bracket |90. A leaf spring 384mounted on the rocker arm 364 urges the lever 312 inwardly to cause thefriction tool 48 to press yieldingly against the platform cover. Theoperation of the cam 380 in holding the friction tool 48 in its initialposition and in releasing it therefrom is similar to the operations ofthe cams S84 and 3|6, already explained. The operative upward movementof the friction tool 43 results from the upward movement of the shaft232 upon which the hub 314 is mounted.

The horn 38 (Figs. l and 10) operates upon the platform cover at theheel end of the shoe. It has a depending shank 386 which is heightwiseadjustable in a slot formed in a block 388, the shank being secured inadjusted position by a setscrew 390. The block 388 constitutes the upperportion of a lever 392 which is freely fulcrumed on a transverse pin 394extending through and secured in the bracket arms 356 and 358. The

lever 392 has a downward extension 396 depend!- ing below the pin 394,and this extension has an opening which loosely surrounds an eye bolt398 extending lengthwise of the shoe and having its eye portion fittedaround and supported by the pin 352 (Fig. 8). A coil compression spring400 (Fig. 1) surrounding the eye bolt 3% and interposed between thelever extension 39S and a shoulder on the stationary bracket 354normally holds the lever 392 in an initial position with the extensionagainst a stop nut 4522 threaded upon the rear end portion of the eyebolt. When the jack 2U with a shoe thereon is depressed` the horn canyield rearwardly while pressing against the shoe upper as the spring 400shortens.

The friction tool 5D (Figs. 1 and l0) is mounted for limited tiltingmovement upon a transverse pin 404 carried by a pair of ears on theupper end of a lever 40B. This lever `M16 is fulcrumed upon a transversepin 411B secured in and extending across a pair of ears formed on therear end of a lever Mil which is fulcrumed at' its mid-point on thetransverse pin 394. As shown in Figs. 8 and 9, the lever 392 is branchedor divided toY provide an opening through. which the lever i9 extends atthe locality in which both levers are fulcrur'ned on the pin 39e. Theforward end of the lever 4| (Fig. l) carries an antifriction roll 4t2which is engaged by an abutment MA on the heel end of the bar 55u/henthe jack 2t descends. A torsion spring dit' surrounding the pin 394Vurges the lever Mil ina clockwise direction as seen in Figs. 1 and 10'to hold the roll l2 yieldingly against the descending abutment till orup in a limiting position determined by a stop (not shown) when the jack2li is up in its initial position. A leaf spring M8 secured in the leverel@ and pressing against the lever tilt urges that lever forward towardthe heel end of the shoe to an initial position determined by a cam 629which is engaged by a roll 432 on an arm e2@- integral with the leverM36 and depending below the fulcrum pin 5&8. The cam 429 is carried by aspider arm 426 which is secured to the spider bracket IQU- by screws 428(Figs. 1 and 8), the cam being releasable by the handle W22' to permitthe spring M8' to urgev the friction tool 50 yield-ingly against theplatform cover. The operation of the friction tool 5t is similar to theoperations of the friction too-ls 154i-, 4t, and 48, already described.

rlhe horn lit and the friction tool 52, as shown in Figs. 2, 4,- 5, and-8, are respectively symmetri-` cal' to the horn 36 and the frictionltool 48"; and, moreover, all the supporting and operatingmembersassociated with the horn it and the friction tool 52 are'symmetrical to corresponding membersl associated with the horn 35' andthe' friction tool 15S. Said corresponding members, therefore, will notbe described further; and where they appear on the drawings they will beindicated by primed reference numerals corresponding to the unprimedreference numerals of the members to which they are symmetrical.

The horn (i2 and the friction tool ii-ll (Figs. 2 and' 3') arerespectively symmetrical to the horn 34 and the friction. tool 45'; and,moreover, except as below noted, all the supporting and operatingmembers' associated with the hornY i2 and the friction tool 5A aresymmetrical to corresponding members associated with the horn 3e and thefriction tool dit'. Such corresponding members will not be describedfurther, and those which appear, in the drawings will be-rv indicated bypri-med'-v reference. numerals corresponding te the Liz) unprimedreference numerals of the members to which they are symmetrical.-

The exception mentioned in the foregoing paragraph concerns theadjusting mechanism operated by the link 2 l2 (Fig. 1). Only one suchlink is needed, and it is conveniently connected to the gear sector 216'(Figs.` 3 and 9) rather than to the gear sector 216.

In operating themachine as so far described, the shoe is placed upon thejack 26 and the platform P is placed by hand upon the sock lining.` Allparte of the machine are in their initial positions, the presser 26being up and in an outof-t-he-wa! position to one side of the shoe. Theoperator now grasps the handle H0 and swings the presser 2t about theaxes of the pins |02 and i i2 to position the presser and center itabove the shoe as shown in Fig. 1. I-Ie then depresses the treadle,causing the heel plate Z8 and the toe plate 3-9 to descendV and. engagethe platform P. Continued lowering of the treadle causes the spring 82`to yield. and permit the shoe and the jack 2@ to descend. from theirinitial positions. As the shoe descends, various localities i of theupper U will engage the horns 32, 3e, 35,

3.8, dll, and i-Z, causing their springs to yield while maintaining thehorns pressed. against the upper so as to enterl within the platformcover C. The operator continues to depress the treadle until the jack ZBhas comer down far enough for' thel latch 92.-' to snap over the stop 8Sand hold the liaclf. down, as shown in 10; at this point he stopsfurther depression of the tre'adle while maintaining enough pressure onit to `hold the presser 2t* clown against the platform P. The upperedges of the horns will now be substantially in contactwith. the base-of the crease between the platform cover C and the upper U,` in whichpositions they will be ready to begin the turning operation; and therolls 226, 33B', M2, and 335i will be in substantial engagement withtheir respective` abutments on the jack 29". While the jack 2li is thuslatched. in the position shown in Fig. 10, the operator swings thehandle 32' clockwise (as seen from above) to release all theY frictiontools ed, 46, 48, 5E),- 52, and 54 from the cams which hold thembackaway from the shoe. Upon such release, the various springsassociated with these friction tool-s will urge. the friction toolsyieldingly against the exposed surface o'f the platform cover. Theoperator then depresses the treadle further.- Now, as the shoe descends,the platform cover Will turn over the upper'edges of the horns from thewrong-sideout position inl which it is shown in Figs. i and- 10 to anupstanding position wherein it is right side out; and the descendingjack will force the rolls 2245', 33%)', M2, andl 336 down, therebyforcing the friction tools 44, 46", 43, 5B, 52,- and 55 up and causingthem to aid the horns by easing tl''platfrm cover up over the edges ofthe horns (see Figs. 4 and 5). Since the levers which transmit motion'from the rolls to the friction tools are all fulcrumed at theirmid-points, the friction tools' Will move' up atthe same speed as thatat whichk the edge of the platform cover which is' attached tosthe shoemoves down, the friction tools thus Working in continuous cooperationwith' descend-ing" jack to turn the platform cover. M w

All the' whileY that the shoe is descending, the platform is pressedagainst-the sock lining witlf'ia yielding pressure depending upon thestrength of the spring S2. This. pressure causes pre- V'lir'n-inarysetting-.of the cement with wi'ii'cl'rv the adjoining faces of theplatform and the sock lining have been coated.

Before the jack 20 has descended far enough for the shoulder 36 toengage the top surface of the squared upper end portion |56 of thesleeve 'i2 and thus positively stop the downward movement of the jack26, the platform cover has been completely turned. Now, when thedownward movement of the jack is thus stopped, the pressure exerted bythe operator on the treadle will be transmitted positively through theplatform and against the sock lining, greatly strengthening thepreliminary adhesive bond already mentioned and insuring a rm anddependable attachment of the platform.

The operation is now complete, and the operator releases the treadlewhile holding back the latch 92 to let the various parts of the machinereturn to their initial positions. He then swings the handle |92counterclockwise to cause the friction tools to be withdrawn from theshoe into out-of-the-way positions. He then grasps the handle l andswings the presser 25 to one side, and removes the shoe from the jack.

To adjust the machine for any particular type of shoe, the knurled head|53 is turned to bring the horns 32, 34, and 42 and their cooperatingfriction tools 44, 46, and 54 to their proper positions lengthwise ofthe shoe. The toe rest slide E4 also is adjusted along the bar 56bringing it into proper position with respect to the length of the shoe,and the toe rest support stem 58 is adjusted heightwise in its socket toinsure that the upper edges or the horns 34 and 42 will be at the baseof the crease between the platform cover C and the upper U when the shoehas been depressed to the position shown in Fig. 10. The shank 58 of thelast pin 22 is then adjusted heightwise in its socket to a positionwhich will insure an even distribution of pressure between the heelplate 28 and the toe plate 3U when the treadle is depressed. Theremaining horns 32,

36, 33, and 46 are then adjusted to bring their upper edges at the baseof the said crease when the shoe occupies the position shown in Fig. 10.Inasmuch as the heightwise positions of the friction tools are notcritical, no provision for their heightwise adjustments is necessary.

Adjustment of the initial position of the horn 34 widthwise of the shoeis effected by turning the nut 212; and a similar adjustment of the horn42 is effected by turning a nut (not shown) symmetrically related to thenut 212. Adjustment of the initial position of the horn 35 widthwise ofthe shoe is effected by turning the nut 362; and a similar adjustment ofthe horn 46 is effected by turning the nut 362. Adjustment of theinitial position of the horn 38 lengthwise of the shoe is effected byturning the nut 402.

Automatic operation of the friction members 44, 46, 48, 56, 52, and 54by downward movement of the shoe supporting jack 20 can be e'ected byadditional mechanism shown in Figs. 11 to 14 inclusive and now to bedescribed. Such mechanism comprises an antifriction roll 43B positionedbetween two anges 432 depending from the spider arm 426, the roll 430acting upon one of the flanges to turn the spider with its cams |84,3I6, 380, 420, 386', and 3|6 in one direction and acting upon the otherflange to turn the spider and cams in the opposite direction. One of theanges 432 has a lug 433 engageable with the roll 430 and extending intothe space between the anges to avoid lost motion between the roll andthe anges. The roll 430 is freely rotatable upon a pin 434 unstandingfrom a rocker arm 436 which has a hub 433 secured upon the upper end ofan upright rockshaft 440 journaled in a bearing formed in the stationarybracket |34. A thrust collar 442 on the rockshaft 440 cooperates withhub 438 to hold the rockshaft against the heightwise movement, thethrust collar and the hub bearing against lower and upper surfaces onthe stationary bracket |34. Secured upon the lower end of the rockshaft440 is a hub 444 from which eX- tends a rocker arm 446 having a cam roll448 mounted for free rotation upon a pin 444 at its outer end.Surrounding the rockshaft 44S is a torsion spring 45|] having its upperend anchored in the stationary frame 86 and its lower end secured to therocker arm 446, the tendency of this spring being to urge the rockshaft444 and its rocker arms in a counterclockwise direction (as seen fromabove).

The rockshaft 440 is operated by a release cam 452 and a restoring cam453, both cams being movable with the stem 84 and engageable with thecam roll 448. The release cam 452, which serves to hold the rockshaft446 in an initial position of rotation until the stem 84 has descendedto a predetermined level and then suddenly to release the rockshaft tothe action of the torsion spring 454, is slidable heightwise in aguideway formed in a block 454 integral with the stop 88. A cover plate456 secured to the block l454 retains the cam 452 within the guideway.Interposed between the bottom of the guideway `and the lower end of thecam 452 is a compression spring 453 surrounding a stem 464 which dependsfrom the cam and slides through a bore in the bottom of the guideway,the compression spring serving yieldably to hold the cam up in a normalposition determined by a stop nut 462 on the lower end of the stem. Theupper portion of the cam 452 extends above the top of the block 454 andhas a vertical restraining surface 464 (Fig. 14) engageable with the camroll 448, a horizontal surface 456 along which the cam roll travelsunder the influence of the torsion spring 450, and a vertical surface468 serving as a stop to limit the movement of the cam roll under theinuence of the torsion spring. As the shoe support 26 and with it theblock 454 descend from their initial positions, the restraining surface454 holds the cam roll 448 in opposition to the torsion spring 45) untilthe horizontal surface 466 permits the torsion spring to swing the camroll into a position determined by the stop surface 468, such action ofthe torsion spring serving, through the roll 434, to swing the spiderarms in a clockwise direction to release the friction members 44, 46,48, 56, 52, and 54 to the actions of their individual springs wherebythe friction members are moved yieldably into engagement with theplatform cover C. The releasing operation of the cam 452 is so timed asto take place when the shoe supporting jack 24 has descended to theposition shown in Fig. 10 and the cover turning operation is about tobegin.

After continued depression of the treadle has brought the jack 24 to itslowest point and the operation upon the shoe has been completed,pressure upon the treadle is released and the jack is permitted to riseunder the influence of its spring 82. As the block 454 thus rises, therelease cam 452 will rise with it until the hori- Zontal surface 466encounters the cam roll 448, checking the upward movement of the cam andcausing the spring 458 to be compressed. To

reset the release cam 452, the restoring. cam 453 f (which constitutesan upward extension of the cover plate 45E) has an inclined surface 410(Fig. '14) engageable, as the restoring cam rises, with the cam roll 448to push the cam roll across and out of the way of the horizontal surface456 and thus permit the compression spring 458 to return the release camto its normal position, with the cam roll against the verticalrestraining surface 454. The restoring cam, in pushing the cam roll 443across the horizontal surface M56, also reloads the torsion spring 450.A ange M2 on the restoring cam 453 affords additional support to therelease cam i552` against the pressure of the cam roll 448.

It is evident that on a machine equipped` with the automatic mechanismjust described, the latch 92 together with the handle 93 and itsassociated parts, and also the handle l92, are unnecessary and, ifdesired, can be omitted; and that the automatic mechanism enables themachine to perform its complete operation upon a single continuousdepression of the treadle.

Having describedl my invention, what I claim as new and desire to secureby Lettersy Patent of the United States is:

1. In a machine for use in the manufacture of shoes, a support for apartially completed platform shoe having an insole and an unturnedplatform cover, means for pressing a platform unit against the insole tocause precemented surfaces of the platform unit and the insole toadhere, means acting upon the shoe support for yieldinglv opposing thepressing means While permitting the pressing means to move the shoe andits support heightwise, a horn engageable with the platform cover toturn the platform cover as the shoe is thus moved heightwise, and aspring for yieldingly holding the horn against the outside of the shoeWhile the platform cover is being turned.

2. In a machine for use in the manufacture of shoes, a support for apartially completed platform shoe having an insole and an unturnedplatform cover, means for pressing a platform unit against the insole tocause precemented surfaces of the platform unit and the insole toadhere, means acting on the shoe support for yieldingly opposing thepressing means While permitting the pressing means to move the shoe andits supp-ort heightwise, means engageable with the platform cover toturn the platform cover as the shoe is thus moved heightwse, and a stopfor holding the shoe support positively against the force of thepressing means when the I.- 7

turning of the platform cover has been completed, said stop therebyenabling the pressure between the platform unit and the insole to beincreased and thereby complete the adhesion of cach to the other.

3. In a machine for use in the manufacture of shoes, a support for apartially completed platform shoe having an insole and an unturnedplatform cover, a guideway in which the shoe support is movableheightWise of the shoe, a presser engageable with a platform unit whichhas been placed upon the insole, means for forcing the presser againstthe platform unit to cause precemented surfaces of the platform unit andthe insole to adhere, a spring acting on the shoe support to oppose thepressure applied by said forcing means, a horn sup-ported againstheightvvise movement and engageable with the platform cover to turn theplatform cover asthe shoe support moves along the guideway in remeans, ahorn 14 spouse to the pressure of the forcing means, which movement ofthe shoe support isy permitted by the yielding of the spring, a secondspring urging the horn in a horizontal direction toward the shoe, and anadjustable stop against which the second spring holds the. horn `in aninitial position from which the horn can yield when engaged by the shoe.

4. In a machine for use in the manufacture of shoes, an upstanding lastpin for supporting an inverted last on which is mounted a partiallycompleted platform shoe having an insole and an unturned platform cover,a rest for supporting the forepart of the shoe and last, a commonsupport for the last pin and the rest, a. guideway in which the supportis movable heightwise, a plunger engageable With a platform unit whichbeen placed upon the insole, means for forcing the plunger down againstthe platform unit to cause precernented surfaces of the platform unitand the insole to adhere, a spring acting on said support to oppose thepressure applied by the forcing means, and a plurality of hornssupported against heightvvise movement and engageable within theplatform cover to turn the platform cover as said support moves down itsguideway in response to the pressure applied by the plunger.

5. In a, machine for use in the manufacture of shoes, an upstanding lastpin for supporting an inverted last on which is mounteda partiallycompleted platform shoe having an insole and an unturned platform cover,a rest for supporting the forepart of the shoe and last, a commonsupport for the last pin and the rest, a guideway in which the supportis movable heightwise, a plunger engageable with a platform. unit whichhas been placed on the insole, treadle operated means for forcing theplunger down against the plunger down against the platform unit to causeprecemented surfaces of the platform unit and the insole to adhere, aspring acting on said support to permit the support to yield and therebylimit the initial pressure applied by the forcing movement andengageable. Within the platform cover to turn the platform cover as theplatform unit and the shoe are forced down by the plunger, and a stopfor limiting the downward movement of the common support and holding itpositively against the pressure applied by the forcing means and therebycompleting the. adhesion between the platform cover and the insole.

6. In a platform cover turning machine, an upstanding last pin forsupporting an inverted last on which is mounted a partially completedplatform shoe having an unturned platform cover, a rest for supportingthe forepart of the shoe and last, a common support for the last pin andthe rest, a guidevvay in which the sup-port is movable heightvvise,means for exerting downward pressure against. the shoe to move the shoeand the support down in a path determined by the guideway, a springnormally holding the support up and yieldable downwardly to the pressureexerting means, a horn engageable Witln in the platform cover at eachend 'of shoe, means for holding the horns up to enable them to turn theplatform cover as the shoe movesdown, a friction tool associated witheach horn and engageable with the outer surface of that portion of theplatform cover which over-lies its associated horn, and connectionsthrough which the sup-port in its downward movement causes I thefriction tools to move up in engagement with supported againstheightwise l the platform cover to assist the horns in turning theplatform cover.

7. In a platform cover turning machine, a support for a partiallycompleted platform shoe having an unturned platform cover, a guideway inwhich the shoe support is movable heightvvise of the shoe, a, springnormally holding the support in an initial position in its guidevvay,means for moving the shoe and the shoe support in a path determined bythe guideway, a horn held against heightwise movement and engageableWithin the platform cover, said horn having an operative edge over whichthe platform cover must turn as the shoe is thus moved from its initialposition, a friction tool engageable with the outer surface of thatportion of the platform cover which overlies the horn, a spring urgingthe friction tool against the platform cover, means for moving thefriction tool to cause it to push the platform cover toward theoperative edge of the horn and thereby assist the horn in turning theplatform cover, releasable means normally opposing the second-mentionedspring to hold the friction tool in an out-of-the-way position away fromthe platform cover, and a latch for holding the shoe support in anintermediate position in its guideway to enable the operator to releasethe friction tool to the operation of its spring after the horn hasentered within the platform cover.

8. In a platform cover turning machine, a support for a partiallycompleted platform shoe having an unturned platform cover, a guideway inwhich the shoe support is movable heightwise of the shoe, means forexerting pressure upon the shoe to cause the shoe support to move alongits guideway, a plurality of horns held against heightvvise movement andengageable within the platform cover, each horn having an operative edgeover Which the platform cover must turn as the shoe is thus moved, afriction tool associate-:i with each horn and engageable with the outersurface of that portion of the platform cover which overlies itsassociated horn, means for yieldingly holding the friction tools inoperating positions against the platform cover, means for operating thefriction tools to cause them to push the platform cover toward theoperative edges of their associated horns and thereby to assist thehorns in turning the platform cover, and a common means for moving thefriction tools from their operating positions to out-ofthe-Way positionswherein they avoid interference with a shoe which is to be placed uponor removed from the support.

9. In a platform cover turning machine, a piurality of tools engageablewithin an unturned platform cover of a partially completed platform shoeat spaced localities about the periphery of the shoe, each tool havingan operative edge over Which the platform cover is to be turned, meansfor effecting relative movement between the shoe and the tools to causethe platform cover to be turned over the operative edges of the tools, afriction tool associated With each of the firstmentioned tools andengageable with the outer surface of the platform cover, a spring forholding each friction tool in operating position against the platformcover, means for operating the friction tools to cause them to push theplatform cover toward the operative edges of the rst-mentioned tools andthereby assist the firstmentioned tools in turning the platform cover,and cam operated mechanism for simultaneously moving the friction toolsfrom operating positions to out-of-the-way positions.

10. In a platform cover turning machine, a support for a partiallycompleted platform shoe having an insole and an unturned platform cover,a pair of members engageable with opposite surfaces of the platformcover for turning the platform cover, means for causing one of saidturning'members to press the platform cover against the other turningmember, means for effecting relative movement between the shoe and theturning members to cause the platform cover to be turned, andinterconnected means for simultaneously adjusting the positions of saidturning members lengthwise of the shoe.

11.`In a platform cover turning machine, a support for a partiallycompleted platform shoe having an insole and an unturned platform cover,a horn engageable within the platform cover, a friction tool engageablewith the outer surface of that portion of the platform cover whichoverlies the horn, a spring for pressing the friction tool against theplatform cover, means for effecting relative heightwise movement betweenthe shoe, the horn, and the friction tool to cause the platform cover tobe turned over the horn, and interconnected means for simultaneouslyadjusting the positions of the horn and the friction member lengthwiseof the shoe.

12. In a platform cover turning machine, a support for a last on whichis mounted a partially completed platform shoe having an insole and anunturned platform cover, a horn engageable Within the platform cover atthe toe end of the shoe, a pair of horns engageable with-in the platformcover at the respective sides of the forepart of the shoe, a pluralityof friction tools cooperating respectively with the horns, each frictiontool being engageable with that portion of the platform cover whichoverlies .its associ- Y ated horn, a spring for pressing each frictiontool against the platform cover, means for effecting relative heightwisemovement between the shoe, the horns, and the friction tools to causethe platform cover to be turned over the horns, and interconnected meansfor simultaneously adjusting the positions of said horns and saidfriction tools lengthwise of the shoe to adapt them for operation uponshoes of different lengths.

13. In a platform cover turning machine, a support for a partiallycompleted platform shoe having an unturned platform cover, a guideway inwhich the shoe support is movable height- Wise of the shoe, means forexerting pressure upon the shoe to cause the shoe support to move `alongits guideway, a horn at each end of the shoe held against heightvvisemovement and engageable within the platform cover, each horn having anoperative edge over Which the platform cover must turn as the shoe isthus moved, a friction tool associated with each horn and engageablewith the outer surface of that portion of the platform cover whichoverlies its associated horn, means for operating the friction tools tocause them to push the platform cover toward the operative edges oftheir associated horns and thereby to assist the horns in turning theplatform cover, and a common means for adjusting the associated horn andfriction tool at one end of the shoe toward or from the associated hornand friction tool at the other end in accordance with the length of theshoe.

14. In a platform cover turning machine, a support for a partiallycompleted platform shoe having an unturned platform cover, means formoving the support with a shoe thereon heightwise from and to an initialposition, a turning horn engageable with the platform cover to turn theplatform -cover as the shoe is thus moved from initial position, afriction tool cooperating With the horn to turn the platform cover, andmeans actuated by the shoe support for automatically moving the frictiontool into an operative position of engagement with the platform coverupon movement of the shoe support from initial position and forautomatically moving the friction tool into an out-of-the-way positionupon return of the shoe support to initial position.

15. In a platform cover turning machine, a Isupport for a partiallycompleted platform shoe having an unturned platform cover, means formoving the support with a shoe thereon to and from an initial position,a turning horn engageable With the platform cover to turn the platformcover as the shoe is thus moved from initial position, a friction toolcooperaing with the horn to turn the platform cover, a spring` forurging the friction tool into operating position against the platformcover, a cam for holding the friction tool away from the platform cover,and means actuated by the shoe support for releasing the friction toolfrom said holding cam to permit the spring to move the friction toolinto operative position when the shoe support has moved a predetermineddistance from its initial position.

JOI-IN T. LANCASTER.

References Cited in the flle of this patent UNITED STATES PATENTS NumberName Date 460,526 Edgerly Sept. 29, 1891 584,590 Horton June 15, 1897702,196 Gardner June 10, 1902 2,223,474 Willmott Dec. 3, 1940 2,422,737Lawson June 24, 1947

